import kotlin.math.sqrt
import kotlin.math.round

fun main() {
	val n = readLine()!!.toLong();
	
	// a^2 + b^2 = n^2 -> 1 <= a < n
	var ans = 0;
	for (a in 1L..(n - 1)) {
		val current = n * n - a * a;
		val root = round(sqrt(current.toDouble())).toLong();
		if (current == (root * root)) ans++;
	}
	
	println(ans);
}
/*
C:\Users\kenne\OneDrive\Desktop\competitive_programming\kotlinmain.kt
*/